Ulduar is the current end game raid instance in the World of Warcraft: Wrath of the Lich King. As players work their way through the raid they come to the Halls of Winter and find Hodir. Hodir is a giant Titan that once resided in the Temple of Winter.  Players may be familiar with him already from the various references to him in the game, specifically in the long quest chain for the Sons of Hodir in the Storm Peaks.  In Ulduar players are able to engage and fight Hodir, but the encounter ends just before he dies.

Frozen Blows – This is a buff that Thorim casts on himself that lasts 20 seconds.  While buffed he does AoE damage to everyone in the room at the raid of about 4,000 damage (3,000 in 10 player raids) every 2 seconds.  Also, while buffed his melee damage drops by roughly 75% but he gains about 35,000 frost damage to all his physical attacks.

You can find all the details in our Hodir Strategy Guide.